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Very nice, lots of symbols. I was going to ask if it could do electronic schematics and block diagrams, but then I noticed the "More shapes" menu.

Looks like a much more powerful tool than the equivalent (free) version of Lucid Charts that others are evangelizing.

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Very nice for electric/electronic/logic diagrams!

Is there a way to connect elements (logic gates, transistors, etc.) inputs to outputs with auto-routing wires?

draw.io started life as one of the examples for mxGraph [1] and we've got a pile of stubly different behaviours available, it's just extremely tricky to expose any great number of without making the UI crap.

Do you mean something like [2]?

[1] http://jgraph.github.io/mxgraph/javascript/index.html

[2] http://jgraph.github.io/mxgraph/javascript/examples/wires.ht...

I noticed the logic gates are mislabeled - "or" is called "exclusive or" and "and" is called "or".

Like https://www.circuitlab.com/ ? (Developer)

How's your block diagramming compared to theirs? draw.io caught my eye because I occasionally need to do stuff like this ( http://i.imgur.com/xs5gyDe.png ). I normally use SmartDraw, which isn't free, and draw.io looks like an interesting alternative.

CircuitLab looks more like a (nicely done!) online version of LTSpice, which wouldn't be as well-suited for block diagrams.

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